Home / 427,308,180.09-641,695,784.22-262,280,743.13

Finding the Fourth Proportional to 427,308,180.09, 641,695,784.22 and 262,280,743.13

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Solution

The fourth proportional to 427,308,180.09, 641,695,784.22 and 262,280,743.13 is: 393,871,343.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,308,180.09 : 641,695,784.22 = 262,280,743.13 : x
  2. Step 2: Convert to fraction form
    427,308,180.09/641,695,784.22 = 262,280,743.13/x
  3. Step 3: Cross multiply
    427,308,180.09x = 641,695,784.22 × 262,280,743.13
  4. Step 4: Simplify right side
    427,308,180.09x = 168,304,447,145,401,248
  5. Step 5: Solve for x
    x = 168,304,447,145,401,248/427,308,180.09
  6. Step 6: Final answer
    x = 393,871,343.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.